lead

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lead (Pb),

(led), Do not confuse this word with the verb led (past tense of lead).
A metallic element, atomic no. 82, atomic wt. 207.2.
Synonym(s): plumbum

lead

(lēd),
An electrocardiographic cable with connections within the electronics of the machine designated for an electrode placed at a particular point on the body surface.
A heavy metal
Epidemiology Inorganic lead sources—gasoline, old paint, workplace chemicals, burning car batteries, ‘moonshine’ liquor distilled in tubing soldered with lead, foods, beverages
Lab Red cells with coarse basophilic stippling, anaemia, reticulocytosis, erythroid hyperplasia, autofluorescence of red cells and erythroid precursors
Nontoxic range Serum < 10 µg/dL4; urine < 100 µg/24 hr Toxic range > 25 µg/dL
Management Chelation—e.g., dimercaprol, calcium EDTA, d-penicillamine, succimer

lead

Toxicology pronounced Lead, as in dead A heavy metal that paints a broad clinical palette Epidemiology Inorganic lead sources–gasoline, old paints, burning car batteries, 'moonshine' liquor distilled in tubing soldered with lead, foods, beverages Lab RBCs with coarse basophilic stippling, anemia, reticulocytosis, erythroid hyperplasia, autofluorescence of RBCs and erythroid precursors Clinical–chronic poisoning Neuromuscular disease with wrist drop and encephalopathy–convulsions, mania, delirium, paresis, paralysis, abdominal colic, nausea, constipation, weight loss, fatigue, headache, tremor, myalgia, loss of concentration, Fanconi syndrome, aminoaciduria, glycosuria, fructosuria, phosphaturia, protoporphyria-like symptoms, HTN Nontoxic range Serum < 10 µg/dL; urine < 100 µg/24 hr Toxic range > 25 µg/dL Management Chelation–eg, dimercaprol, calcium EDTA, d-penicillamine, succimer. See Lead crystal, Lead line, Lead poisoning, Port Pirie Cohort Study, Saturnine gout, Succimer.

lead

pronounced Leed, as in deed Cardiac pacing Catheter, wire The 'deployment' part of a pacemaker, which has 3 components–the wire(s) which carry the electrical signals and pulses to and from the heart, a connector pin and stimulating/sensing electrode(s). See Active fixation lead, Atrial lead, Coaxial lead, Endocardial lead, Inferior lead, Low-threshold lead, Myocardial lead, Permanent lead, Silicone lead, Sprint tachyarrhythmia lead, Steroid eluting lead, Temporary lead, Ventricular lead Cardiology Any specific site for placing electrodes on an EKG Standard 12-lead EKG 3 bipolar limb leads–I, II, III, 3 augmented unipolar limb leads–aVR, aVL, aVF, 6 precordial leads–V1-V6 Pharmaceutical industry A candidate unknown substance with properties that suggest to industry experts therapeutic properties.

lead

(lēd)
1. An electrical conductor carrying current or intermittent signals between an organ or tissue and an electrical or electronic device.
2. The tracing obtained from a particular combination of electrode positions.

lead

(Pb) (led)
A metallic element, atomic no. 82, atomic wt. 207.2; occurs in nature as an oxide or one of the salts, but chiefly as the sulfide, or galena; 210Pb (half-life equal to 22.6 years) has been used in the treatment of certain eye conditions.
Synonym(s): plumbum.
[L. plumbum]

lead

1. A malleable heavy metal with poisonous salts.
2. An electrical connection or electrode by which currents are conveyed to or from the body.

Lead

Name given the electrode when it is attached to the skin.
Mentioned in: Electrocardiography

lead

(lēd)
An electrocardiographic cable with connections within the electronics of the machine designated for an electrode placed at a particular point on the body surface.

lead

(lĕd)
A metallic element, atomic no. 82, atomic wt. 207.2.
[L. plumbum]

Patient discussion about lead

Q. Does lead harm fetuses?

A. Lead is highly teratogenic. it affects the fetus Central Nerve System - the CNS. and unfortunately the fetus is very sensitive and absorbs the lead from the mother body. therefor damage to the fetus is higher then to the mother, that means she can be unharmed and the fetus can be affected. because the CNS is built throwout the pregnancy (after the 18th day) it can do damage if exposed at that time.
i hope i'm not the bearer of bad news...

Q. What are the chances that chronic depression leads to schizophrenia? Someone close to me has been battling depression for 17 years now. She is doing a good job, has held on to a demanding job for 4 years now. Though her performance at work are highly erratic. Periods of poor apathetic performance interspersed with periods of high performance. She shows symptoms of chronic depression, withdraws from social life, has low energy, can spend days in bed, is messy etc. She's on medication too. I fear that the next phase will be schizophrenia

A. Sometimes if you forget to take your medication, you can have bad days. It could be from not getting enough sleep, something stressful going on in personal life, job stress, some big change. There's a long list....
I am not an expert on depression, but I don't think it leads to schizophrenia. Not exercising can certainly lead to other health problems. Everything can go into the death spiral if you just ignore everything and quit taking care of yourself.

You mentioned this was about a friend. So maybe, you have to do what a real friend needs to do. Some people will not help themselves and will let others do everything for them. If that's the problem, saying NO may be just the thing to get them to do things for themselves, like they should be doing. So if you are babying your friend, then maybe that's not really in their best interest. I don't know what's really gong on in your situation. So my suggestions could be way off. Its impossible for me to understand it with just the few w

Q. What are the leading causes of depression and anxiety in women today? Females suffer from anxiety and depression at twice the rate of men. In fact, mental disorders such as anxiety and depression are the leading cause of disability for women. What are the leading causes of anxiety and depression in women? Please provide as credible sources as possible. Thank you.

A. I know from experience, hormones. When I was on birth control it made me nuts - anxiety and panic attacks. Mood swings and crying over nothing. Many of my friends have also experienced this on BC - and some who were never on BC started taking it and it balanced them out. So I really believe that hormones play a huge part. Also thyroid problems too.

More discussions about lead
References in periodicals archive ?
The lead frame with an embedded IC chip and using a high precision plating format developed by DNP completed U.S.
Another benefit of the new OSLON LED is its low thermal resistance of 6.5 K/W, which again is due mainly to the metal lead frame.
Samsung aims to attain annual shipment of 10 million LED-backlit LCD TVs this year, and hence contracts I-Chiun to outsource production of LED lead frames. In response to Samsung's upcoming big orders, the firm is scheduled to activate its brand new plant in Taiwan in February as the earliest, which takes up an area of over 66,000 square meters and will help to boost the firm's maximum output of SMD (surface mounted device) LED lead frames to 1.5 billion units from the current 1 billion units.
Lead frame module (LFM) packaging is a technology developed to address improvements in key areas related to performance and supply chain logistics for cellular components.
Computer-controlled sequencing, developed by Sadaplast, uses a fiber-optic "electric eye" to search and scan a continuous lead frame just ahead of the system's eight-cavity mold.
Additionally, as part of the corresponding customer satisfaction program, Ford will provide a one-time replacement of the lead frame at no charge within 10 years or 150,000 miles from the warranty start date.
* Packaging that eliminates the metal core PCB and instead fuses to a lead frame.
Thus, after decades of packaging--typically--a single die on a metal lead frame, the face of IC backend is being permanently transformed and acquiring the flavor of a PCB assembly-like process, albeit one involving dies and surface mount all within the package itself.
The lead frame is an eight-lead small outline package per JEDEC specification MS-012AA.
In many cases, stacked components arc available in through hole DIP configuration as well as J, gull, and various other lead frame configurations that optimize harsh environment performance.
The semiconductor platform and lead frame must be designed with the reflector cup in close proximity to the LED chip itself.